introduced ChannelOptions
pulling ITransport.Send() out of this for now
beginnings of the routing
deterministic key for a channel
fleshing out ChannelGraph, renamed ChannelOptions to ChannelNode
ChannelNode.Publishes()
ChannelNode and ChannelGraph can read settings
implemented the RhinoUri helper
checkpoint: did the IChannel/Itransport split w/ some broken tests
checkpoint:  re-implemented TransportActivator
checkpoint:  ChannelGraph.StartReceiving is working
all tests passing again, but rhino queue integration tests need to rebuilt
PROTOTYPE of the RhinoQueues channel and transport